A new graduate from electrical engineering education must know about digital signal processing (DSP) to find a secure place in the competitive jobs market. Although this topic can be taught theoretically, its importance comes from practical applications. Therefore, students must be equipped with appropriate tools. Fortunately, DSP platforms serve this purpose. At Yeditepe University, we established a laboratory to guide students in real-time digital signal processing applications. We selected a Texas Instruments TMS320C6713 DSK platform for this purpose. In this study, we provide several laboratory applications on this platform. We also provide more advanced projects developed by our students which emerged from these applications. We observed that this laboratory improved the understanding of theoretical DSP concepts.
Range scanners are used in various applications in industry. Therefore, various range scanners, based on different working principles are developed. Among these, scanners using stripe based triangulation are the most promising ones. Unfortunately, these scanners have problems in obtaining the range data of shiny objects (having highlights) under ambient light. In this study, we develop a stripe projection based range scanner to solve this problem. Our main contribution is on detecting the stripe using a color invariant in a robust manner. We developed a projector based scanner using this color invariant. Our scanner has also the advantage of flexibly changing stripe color for different colored objects. We test the performance of our novel stripe detection method under various controlled experiments. We also test the overall performance of our scanner in extracting the range data of several objects having highlights. Extensive testings indicate the success of our range scanner, especially for scanning objects having highlights under ambient light.
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